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Abstract #2806

ExLoc: Excitation & Encoding of Curved Slices

Hans Weber1, Daniel Gallichan1, Gerrit Schultz1, Walter R. Witschey1, Anna Masako Welz1, Christian A. Cocosco1, Jrgen Hennig1, Maxim Zaitsev1

1Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany

Adaptation of the slice shape to the volume of interest would be beneficial for many MRI applications, as it allows coverage with fewer excited slices. In this work, we theoretically design and demonstrate experimentally a method (ExLoc) for excitation of customized curved slices, based on a combination of linear and nonlinear gradients. As signal is encoded along the curved surface, a local rectangular voxel shape is maintained. In contrast to linear spatial encoding, partial volume effects and through-slice dephasing is avoided.